search

edibg / growattArkCAN

ESP32 project for Growatt ARK CAN BMS protocol gateway
5 stars 1 forks source link

ARK Battery overcharging in case of DIY disconnect #1

Closed edibg closed 2 years ago

edibg commented 2 years ago

In some cases, when the DIY battery stop its charging - i.e. high voltage threshold reached in at least one cell, the DIY battery temporary stops charging, that cause all the current to be diverted to the ARK battery.

2022-10-14_14h23_46

Code by v.0.0.1 adds routine for checking ARK BMS current, but need to be tested in real conditions.

edibg commented 2 years ago

After 2 weeks of tests of the v.0.0.1 code, the slope when the DIY battery is not so steep and ARK battery current do not goes over ~30A that is little above the battery limit but I think quite manageable.